WO2020050683A1 - Procédé de fonctionnement d'un terminal et d'une station de base dans un système de communication sans fil, et dispositif destiné à le prendre en charge - Google Patents

Procédé de fonctionnement d'un terminal et d'une station de base dans un système de communication sans fil, et dispositif destiné à le prendre en charge Download PDF

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Publication number
WO2020050683A1
WO2020050683A1 PCT/KR2019/011552 KR2019011552W WO2020050683A1 WO 2020050683 A1 WO2020050683 A1 WO 2020050683A1 KR 2019011552 W KR2019011552 W KR 2019011552W WO 2020050683 A1 WO2020050683 A1 WO 2020050683A1
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Prior art keywords
resource
terminal
reference signal
sinr
interference measurement
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PCT/KR2019/011552
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English (en)
Korean (ko)
Inventor
이길봄
강지원
김기준
박종현
윤석현
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엘지전자 주식회사
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Priority to US16/775,476 priority Critical patent/US10931389B2/en
Publication of WO2020050683A1 publication Critical patent/WO2020050683A1/fr
Priority to US17/139,569 priority patent/US11716645B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/345—Interference values
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/26025—Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H04L27/26132—Structure of the reference signals using repetition

Definitions

  • the following description relates to a wireless communication system, and a terminal associated with an operation for reporting a signal to interference noise ratio (SINR) associated with a specific reference signal (eg, channel state information-reference signal, etc.) in a wireless communication system And an operating method of a base station and an apparatus supporting the same.
  • SINR signal to interference noise ratio
  • Wireless access systems are widely deployed to provide various kinds of communication services such as voice and data.
  • a wireless access system is a multiple access system capable of supporting communication with multiple users by sharing available system resources (bandwidth, transmission power, etc.).
  • multiple access systems include code division multiple access (CDMA) systems, frequency division multiple access (FDMA) systems, time division multiple access (TDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, and single carrier frequency (SC-FDMA). division multiple access) system.
  • CDMA code division multiple access
  • FDMA frequency division multiple access
  • TDMA time division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • an improved mobile broadband communication technology has been proposed compared to a conventional radio access technology (RAT).
  • RAT radio access technology
  • a communication system that considers services / UEs sensitive to reliability and latency as well as massive machine type communications (MTC) that provides a variety of services anytime, anywhere by connecting multiple devices and objects has been proposed.
  • MTC massive machine type communications
  • URLLC ultra-reliable and low latency communication
  • the present disclosure provides a method of operating a terminal and a base station in a wireless communication system and devices supporting the same.
  • the present disclosure provides a method of operating a terminal and a wireless communication system and devices therefor.
  • a method of operating a terminal in a wireless communication system comprising: receiving a signal to interference noise ratio (SINR) report setting from a base station; Based on the SINR report setting, (i) when an interference measurement resource related to a channel measurement reference signal resource is set to the terminal, refer to the channel measurement using a first interference measurement result calculated based on the interference measurement resource Calculating SINRs related to signal resources; Or, (ii) when the interference measurement resource associated with the channel measurement reference signal resource is not set to the terminal, the channel measurement reference signal using the second interference measurement result calculated based on the channel measurement reference signal resource Calculate SINRs related to resources; And reporting the calculated SINR to the base station.
  • SINR signal to interference noise ratio
  • the SINR report setting may be received through higher layer signaling.
  • a non-zero power channel state information-reference signal (NZP CSI-RS) or a synchronization signal / physical broadcast channel (synchronization) received through the channel measurement reference signal resource signal / physical broadcast channel
  • the interference measurement resource may include a zero power (ZP) interference measurement resource or a non-zero interference measurement resource.
  • the channel measurement reference signal resource and the interference measurement resource may be set on one orthogonal frequency division multiplexing (OFDM) symbol.
  • OFDM orthogonal frequency division multiplexing
  • the channel measurement reference signal resource and the interference measurement resource may be set according to a frequency division multiplexing (FDM) method on the one OFDM symbol.
  • FDM frequency division multiplexing
  • the terminal may include calculating the SINR associated with the channel measurement reference signal resource using the first interference measurement result.
  • the terminal uses the second interference measurement result calculated based on the channel measurement reference signal resource and the channel measurement reference signal resource and Calculating a related SINR performs channel estimation based on the channel measurement reference signal resource; Calculating a result of the second interference measurement by removing a signal of interest detected through the channel estimation from the channel measurement reference signal resource; And calculating SINR related to the channel measurement reference signal resource based on the second interference measurement result.
  • the channel measurement reference signal resource in one resource block (RB) may be set on at least three subcarriers.
  • the channel measurement reference signal resource is a plurality of resources having a predetermined resource element (RE) interval on one orthogonal frequency division multiplexing (OFDM) symbol It can be set on REs.
  • RE resource element
  • the SINR may include a first layer (L1) -SINR.
  • a terminal operating in a wireless communication system comprising: at least one transmitter; At least one receiver; At least one processor; And at least one memory operatively connected to the at least one processor and storing instructions that, when executed, cause the at least one processor to perform a particular operation, the specific operation being: from a base station.
  • SINR signal to interference noise ratio
  • the terminal may communicate with at least one of a mobile terminal, a network, and an autonomous vehicle other than a vehicle including the terminal.
  • a base station operating in a wireless communication system comprising: at least one transmitter; At least one receiver; At least one processor; And at least one memory operatively connected to the at least one processor and storing instructions that, when executed, cause the at least one processor to perform a specific operation, wherein the specific operation is: to a terminal.
  • Transmit signal to interference noise ratio (SINR) reporting settings Transmitting a reference signal to the terminal through a channel measurement reference signal resource; And receiving the SINR report related to the channel measurement reference signal resource from the terminal based on the SINR report setting transmitted to the terminal, wherein the received SINR report is: (i) measuring the channel to the terminal.
  • SINR signal to interference noise ratio
  • an interference measurement resource related to a reference signal resource When an interference measurement resource related to a reference signal resource is set, it is calculated based on a first interference measurement result calculated based on the interference measurement resource; Alternatively, (ii) when the interference measurement resource related to the channel measurement reference signal resource is not set to the terminal, the second interference measurement result is calculated based on the reference signal resource from which the reference signal is received. , Propose a base station.
  • the terminal may calculate and report SINR related to a specific reference signal in different ways.
  • the terminal may calculate and report SINR in a different way.
  • the base station may recognize that the received SINR information is calculated based on a different method according to whether an interference measurement resource for reporting SINR is set to the terminal. In addition, considering this, the base station can manage / schedule the terminal by using the received SINR information.
  • 1 is a view for explaining a physical channel and a signal transmission method using them.
  • FIG. 2 is a diagram illustrating a structure of a radio frame based on an NR system to which embodiments of the present disclosure are applicable.
  • FIG. 3 is a diagram illustrating a slot structure based on an NR system to which embodiments of the present disclosure are applicable.
  • FIG. 4 is a diagram illustrating a self-contained slot structure based on an NR system to which embodiments of the present disclosure are applicable.
  • FIG. 5 is a diagram illustrating one REG structure based on an NR system to which embodiments of the present disclosure are applicable.
  • 6 to 8 are reference diagrams for explaining an operation example of the terminal proposed in the present disclosure.
  • FIG. 9 is a diagram briefly showing an operation example of a terminal and a base station according to an example of the present disclosure
  • FIG. 10 is a flowchart briefly showing an operation example of a terminal according to an example of the present disclosure
  • FIG. 11 is an example of this disclosure It is a flowchart simply showing an example of the operation of the base station according to.
  • FIG 13 illustrates a wireless device that can be applied to the present disclosure.
  • FIG 14 shows another example of a wireless device applied to the present disclosure.
  • 16 illustrates a vehicle or autonomous vehicle applied to the present disclosure.
  • each component or feature can be considered to be optional unless stated otherwise.
  • Each component or feature may be implemented in a form that is not combined with other components or features.
  • some components and / or features may be combined to form an embodiment of the present disclosure.
  • the order of the operations described in the embodiments of the present disclosure can be changed. Some components or features of one embodiment may be included in another embodiment, or may be replaced with corresponding components or features of another embodiment.
  • the base station is meant as a terminal node of a network that directly communicates with a mobile station.
  • Certain operations described in this document as being performed by a base station may be performed by an upper node of the base station in some cases.
  • various operations performed for communication with a mobile station in a network consisting of a plurality of network nodes including a base station may be performed by the base station or network nodes other than the base station.
  • the 'base station' may be replaced by terms such as a fixed station, Node B, eNode B (eNB), gNode B (gNB), advanced base station (ABS), or access point. You can.
  • a terminal is a user equipment (UE), a mobile station (MS), a subscriber station (SS), or a mobile subscriber station (MSS). , It may be replaced with terms such as a mobile terminal or an advanced mobile station (AMS).
  • UE user equipment
  • MS mobile station
  • SS subscriber station
  • MSS mobile subscriber station
  • AMS advanced mobile station
  • the transmitting end refers to a fixed and / or mobile node that provides a data service or a voice service
  • the receiving end refers to a fixed and / or mobile node that receives a data service or a voice service. Therefore, in uplink, a mobile station may be a transmitting end and a base station may be a receiving end. Similarly, in downlink, a mobile station may be a receiving end and a base station may be a transmitting end.
  • Embodiments of the present disclosure can be supported by standard documents disclosed in at least one of the wireless access systems IEEE 802.xx system, 3GPP (3rd Generation Partnership Project) system, 3GPP LTE system, 3GPP 5G NR system and 3GPP2 system,
  • embodiments of the present disclosure may be supported by 3GPP TS 38.211, 3GPP TS 38.212, 3GPP TS 38.213, 3GPP TS 38.321 and 3GPP TS 38.331 documents. That is, obvious steps or parts not described in the embodiments of the present disclosure may be described with reference to the documents. Also, all terms disclosed in this document may be described by the standard document.
  • 3GPP NR system will be described as an example of a radio access system in which embodiments of the present disclosure can be used.
  • CDMA code division multiple access
  • FDMA frequency division multiple access
  • TDMA time division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • embodiments of the present disclosure mainly describe a 3GPP NR system.
  • the embodiments proposed in the present disclosure can be applied to other wireless systems (eg, 3GPP LTE, IEEE 802.16, IEEE 802.11, etc.).
  • a terminal receives information from a base station through downlink (DL) and transmits information to the base station through uplink (UL).
  • the information transmitted and received by the base station and the terminal includes general data information and various control information, and various physical channels exist according to the type / use of the information they transmit and receive.
  • FIG. 1 is a view for explaining a physical channel that can be used in embodiments of the present disclosure and a signal transmission method using them.
  • the initial cell search operation such as synchronizing with the base station is performed in step S11.
  • the terminal receives a Primary Synchronization Channel (P-SCH) and a Secondary Synchronization Channel (S-SCH) from the base station, synchronizes with the base station, and obtains information such as a cell ID.
  • P-SCH Primary Synchronization Channel
  • S-SCH Secondary Synchronization Channel
  • the terminal may receive a physical broadcast channel (PBCH) signal from the base station to obtain broadcast information in a cell.
  • PBCH physical broadcast channel
  • the terminal may receive a downlink reference signal (DL RS) in the initial cell search step to confirm the downlink channel state.
  • DL RS downlink reference signal
  • the UE After completing the initial cell search, the UE receives a physical downlink control channel (PDCCH) and a physical downlink control channel (PDSCH) according to the physical downlink control channel information in step S12. Specific system information can be obtained.
  • PDCCH physical downlink control channel
  • PDSCH physical downlink control channel
  • the terminal may perform a random access procedure such as steps S13 to S16 to complete the access to the base station.
  • the UE transmits a preamble through a physical random access channel (PRACH) (S13), and RAR for the preamble through a physical downlink control channel and a corresponding physical downlink shared channel ( Random Access Response) may be received (S14).
  • the UE transmits a PUSCH (Physical Uplink Shared Channel) using scheduling information in the RAR (S15), and a collision resolution procedure such as reception of a physical downlink control channel signal and a corresponding physical downlink shared channel signal (Contention Resolution Procedure) ) Can be performed (S16).
  • PUSCH Physical Uplink Shared Channel
  • Contention Resolution Procedure Contention Resolution Procedure
  • the UE After performing the above-described procedure, the UE subsequently receives a physical downlink control channel signal and / or a physical downlink shared channel signal (S17) and a physical uplink shared channel (PUSCH) as a general uplink / downlink signal transmission procedure.
  • a transmission (Uplink Shared Channel) signal and / or a Physical Uplink Control Channel (PUCCH) signal may be transmitted (S18).
  • UCI uplink control information
  • HARQ-ACK / NACK Hybrid Automatic Repeat and reQuest Acknowledgement / Negative-ACK
  • SR Scheduling Request
  • CQI Channel Quality Indication
  • PMI Precoding Matrix Indication
  • RI Rank Indication
  • BI Beam Indication
  • UCI is generally periodically transmitted through PUCCH, but may be transmitted through PUSCH according to an embodiment (eg, when control information and traffic data should be simultaneously transmitted).
  • the UE may periodically transmit UCI through PUSCH by request / instruction of the network.
  • FIG. 2 is a diagram illustrating a structure of a radio frame based on an NR system to which embodiments of the present disclosure are applicable.
  • the uplink and downlink transmission based on the NR system is based on the frame shown in FIG.
  • One radio frame has a length of 10 ms, and is defined as two 5 ms half-frames (HFs).
  • One half-frame is defined as 5 1ms subframes (Subframes, SFs).
  • One subframe is divided into one or more slots, and the number of slots in the subframe depends on Subcarrier Spacing (SCS).
  • SCS Subcarrier Spacing
  • Each slot includes 12 or 14 OFDM (A) symbols according to a cyclic prefix (CP). Normally, if CP is used, each slot contains 14 symbols. When an extended CP is used, each slot includes 12 symbols.
  • the symbol may include an OFDM symbol (or CP-OFDM symbol) and an SC-FDMA symbol (or DFT-s-OFDM symbol).
  • Table 1 shows the number of symbols per slot according to the SCS, the number of slots per frame, and the number of slots per subframe when the normal CP is used
  • Table 2 shows the slot number according to the SCS when the extended CSP is used. It indicates the number of symbols, the number of slots per frame, and the number of slots per subframe.
  • N slot symb indicates the number of symbols in the slot
  • N frame indicates the number of slots in the frame
  • ⁇ slot indicates the number of slots in the frame
  • N subframe indicates the number of slots in the subframe
  • OFDM (A) numerology eg, SCS, CP length, etc.
  • a numerology eg, SCS, CP length, etc.
  • a (absolute time) section of a time resource eg, SF, slot, or TTI
  • a time unit TU
  • FIG. 3 is a diagram illustrating a slot structure based on an NR system to which embodiments of the present disclosure are applicable.
  • One slot includes a plurality of symbols in the time domain. For example, in the case of a normal CP, one slot includes 7 symbols, but in the case of an extended CP, one slot includes 6 symbols.
  • the carrier includes a plurality of subcarriers in the frequency domain.
  • RB Resource Block
  • RB Resource Block
  • BWP Bandwidth Part
  • P contiguous
  • CP Physical channels
  • the carrier may include up to N (eg, 5) BWPs. Data communication is performed through the activated BWP, and only one BWP can be activated for one terminal.
  • N e.g. 5
  • Each element in the resource grid is referred to as a resource element (RE), and one complex symbol may be mapped.
  • RE resource element
  • FIG. 4 is a diagram illustrating a self-contained slot structure based on an NR system to which embodiments of the present disclosure are applicable.
  • the base station and the UE can sequentially perform DL transmission and UL transmission within one slot, and can transmit and receive DL data and transmit and receive UL ACK / NACK therein within one slot.
  • this structure reduces the time taken to retransmit data in the event of a data transmission error, thereby minimizing the delay of the final data transfer.
  • a type gap of a certain time length is required for a base station and a UE to switch from a transmission mode to a reception mode or to switch from a reception mode to a transmission mode.
  • some OFDM symbols at a time point of switching from DL to UL in an independent slot structure may be set as a guard period (GP).
  • the independent slot structure includes both the DL control area and the UL control area
  • the control areas may be selectively included in the independent slot structure.
  • the self-supporting slot structure according to the present disclosure may include a case in which only the DL control area or the UL control area is included as well as the case where both the DL control area and the UL control area are included as shown in FIG. 4.
  • one slot may be configured in the order of DL control area / DL data area / UL control area / UL data area, or may be configured in the order of UL control area / UL data area / DL control area / DL data area.
  • the PDCCH may be transmitted in the DL control region, and the PDSCH may be transmitted in the DL data region.
  • PUCCH may be transmitted in the UL control region, and PUSCH may be transmitted in the UL data region.
  • downlink control information for example, DL data scheduling information, UL data scheduling information, and the like may be transmitted.
  • uplink control information for example, ACK / NACK (Positive Acknowledgement / Negative Acknowledgement) information for DL data, CSI (Channel State Information) information, and SR (Scheduling Request) may be transmitted.
  • PDSCH carries downlink data (eg, DL-shared channel transport block, DL-SCH TB), and modulation methods such as QPSK (Quadrature Phase Shift Keying), 16 QAM (Quadrature Amplitude Modulation), 64 QAM, 256 QAM Applies.
  • a codeword is generated by encoding TB.
  • PDSCH can carry up to two codewords. For each codeword, scrambling and modulation mapping are performed, and modulation symbols generated from each codeword are mapped to one or more layers (Layer mapping). Each layer is mapped to a resource together with a DMRS (Demodulation Reference Signal) and is generated as an OFDM symbol signal and transmitted through a corresponding antenna port.
  • DMRS Demodulation Reference Signal
  • the PDCCH carries downlink control information (DCI) and a QPSK modulation method is applied.
  • DCI downlink control information
  • One PDCCH is composed of 1, 2, 4, 8 and 16 control channel elements (CCEs) according to an aggregation level (AL).
  • CCE is composed of six Resource Element Groups (REGs).
  • REG is defined by one OFDM symbol and one (P) RB.
  • FIG. 5 is a diagram illustrating one REG structure based on an NR system to which embodiments of the present disclosure are applicable.
  • D denotes a resource element (RE) to which DCI is mapped
  • R denotes RE to which DMRS is mapped.
  • DMRS is mapped to the 1st, 5th, and 9th REs in the frequency domain direction within one symbol.
  • CORESET Control Resource Set
  • CORESET is defined as a set of REGs with a given pneumonology (eg, SCS, CP length, etc.). Multiple CORESETs for one UE may overlap in the time / frequency domain.
  • CORESET may be set through system information (eg, MIB) or UE-specific upper layer (eg, Radio Resource Control, RRC, layer) signaling. Specifically, the number of RBs and the number of symbols (up to 3) constituting the CORESET may be set by higher layer signaling.
  • PUSCH carries uplink data (eg, UL-shared channel transport block, UL-SCH TB) and / or uplink control information (UCI), and CP-OFDM (Cyclic Prefix-Orthogonal Frequency Division Multiplexing) waveform Or it is transmitted based on a DFT-s-OFDM (Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing) waveform.
  • DFT-s-OFDM Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing
  • PUSCH may be transmitted based on a waveform or a DFT-s-OFDM waveform.
  • PUSCH transmission is dynamically scheduled by UL grant in DCI, or semi-static based on upper layer (eg, RRC) signaling (and / or Layer 1 (L1) signaling (eg, PDCCH)). Can be scheduled (configured grant).
  • PUSCH transmission may be performed on a codebook basis or a non-codebook basis.
  • PUCCH carries uplink control information, HARQ-ACK and / or scheduling request (SR), and is divided into Short PUCCH and Long PUCCH according to the PUCCH transmission length.
  • Table 3 illustrates PUCCH formats.
  • PUCCH format 0 carries UCI up to 2 bits in size, and is mapped and transmitted based on a sequence. Specifically, the terminal transmits a specific UCI to the base station by transmitting one sequence among a plurality of sequences through PUCCH in PUCCH format 0. The UE transmits a PUCCH in PUCCH format 0 in PUCCH resource for setting a corresponding SR only when transmitting a positive SR.
  • PUCCH format 1 carries UCI with a size of up to 2 bits, and the modulation symbol is spread in the time domain by an orthogonal cover code (OCC) (which is set differently depending on whether frequency hopping is performed).
  • OCC orthogonal cover code
  • DMRS is transmitted on a symbol in which a modulation symbol is not transmitted (ie, time division multiplexing (TDM)).
  • PUCCH format 2 carries UCI having a bit size larger than 2 bits, and the modulation symbol is transmitted through DMRS and Frequency Division Multiplexing (FDM).
  • DM-RS is located at symbol indices # 1, # 4, # 7, and # 10 in a given resource block at a density of 1/3.
  • PN Pulseudo Noise sequence is used for the DM_RS sequence.
  • frequency hopping may be activated.
  • PUCCH format 3 does not allow terminal multiplexing in the same physical resource blocks, and carries a UCI having a bit size larger than 2 bits.
  • PUCCH resources in PUCCH format 3 do not include orthogonal cover codes.
  • the modulation symbol is transmitted through DMRS and Time Division Multiplexing (TDM).
  • PUCCH format 4 supports multiplexing up to 4 UEs in the same physical resource block, and carries a UCI having a bit size larger than 2 bits.
  • the PUCCH resource of PUCCH format 3 includes an orthogonal cover code.
  • the modulation symbol is transmitted through DMRS and Time Division Multiplexing (TDM).
  • the NR system may support DCI format 0_0 and DCI format 0_1 as DCI formats for PUSCH scheduling, and DCI format 1_0 and DCI format 1_1 as DCI formats for PDSCH scheduling.
  • the NR system may additionally support DCI format 2_0, DCI format 2_1, DCI format 2_2, and DCI format 2_3.
  • DCI format 0_0 is used to schedule a transmission block (TB) -based (or TB-level) PUSCH
  • DCI format 0_1 is a transmission block (TB) -based (or TB-level) PUSCH or (CBG (Code Block Group)) It may be used to schedule CBG-based (or CBG-level) PUSCH) when the base signal transmission / reception is set.
  • CBG Code Block Group
  • DCI format 1_0 is used to schedule TB-based (or TB-level) PDSCH
  • DCI format 1_1 is TB-based (or TB-level) PDSCH or (when CBG-based signal transmission and reception is set) CBG-based (or CBG- level) can be used to schedule the PDSCH.
  • DCI format 2_0 is used for notifying the slot format (used for notifying the slot format)
  • DCI format 2_1 is used for notifying PRB and OFDM symbols that assume that a specific UE has no intended signal transmission ( used for notifying the PRB (s) and OFDM symbol (s) where UE may assume no transmission is intended for the UE)
  • DCI format 2_2 is used for transmission of Transmission Power Control (TPC) commands of PUCCH and PUSCH
  • DCI format 2_3 may be used for transmission of a group of TPC commands for SRS transmission by one or more UEs (used for the transmission of a group of TPC commands for SRS transmissions by one or more UEs).
  • DCI format 1_1 includes an MCS / NDI (New Data Indicator) / RV (Redundancy Version) field for transport block (TB) 1, and an upper layer parameter maxNrofCodeWordsScheduledByDCI in the upper layer parameter PDSCH-Config has n2 (ie , 2), the MCS / NDI / RV field for transport block 2 may be further included.
  • MCS / NDI New Data Indicator
  • RV Redundancy Version
  • maxNrofCodeWordsScheduledByDCI in the upper layer parameter PDSCH-Config has n2 (ie , 2)
  • the MCS / NDI / RV field for transport block 2 may be further included.
  • n2 that is, 2
  • whether to enable / disable the transport block may be determined by a combination of MCS field and RV field. More specifically, when the MCS field for a specific transport block has a value of 26 and the RV field has a value of 1, the specific transport block may be disabled.
  • DCI format can be supported by 3GPP TS 38.212 document. That is, obvious steps or parts that are not described among DCI format-related features may be described with reference to the document. Also, all terms disclosed in this document may be described by the standard document.
  • One CORESET include N symb CORESET symbols (corresponding value having a value of 1, 2, 3) in the time domain and includes a CORESET N RB of RB in the frequency domain.
  • One control channel element includes 6 resource element groups (REGs), and one REG is the same as one RB on one OFDM symbol.
  • REGs in the CORESET are numbered in order according to the time-first manner. Specifically, the numbering starts from '0' for the first OFDM symbol in CORESET and the lowest-numbered RB.
  • a plurality of CORESETs may be set for one terminal.
  • Each CORESET is related only to one CCE-to-REG mapping.
  • CCE-to-REG mapping for one CORESET may be interleaved or non-interleaved.
  • the setting information for CORESET can be set by the upper layer parameter ControlResourceSet IE.
  • the setting information for CORESET 0 (eg, common CORESET) can be set by the upper layer parameter ControlResourceSetZero IE.
  • a list of maximum M TCI (Transmission Configuration Indicator) state settings for one terminal may be set.
  • the maximum M TCI state setting may be set by the upper layer parameter PDSCH-Config so that (the UE) can decode the PDSCH upon detection of the PDCCH including the DCI intended for the UE and a given serving cell. have.
  • the M value may be determined depending on the capability of the terminal.
  • Each TCI-state includes a parameter for setting a QCL (quasi co-location) relationship between one or two downlink reference signals and DMRS ports of the PDSCH.
  • the QCL relationship is established based on the upper layer parameter qcl-Type1 for the first DL RS (downlink reference signal) and the upper layer parameter qcl-Type2 for the second DL RS (if set).
  • the QCL types should not be the same (shall not be the same).
  • the QCL types correspond to each DL RS given by the upper layer parameter qcl-Type in the upper layer parameter QCL-Info , and the QCL types can have one of the following values.
  • the terminal receives an activation command (activation command) used to map the maximum 8 TCI states with a codepoint of a Transmission Configuration Indication (TCI) field in DCI.
  • activation command used to map the maximum 8 TCI states with a codepoint of a Transmission Configuration Indication (TCI) field in DCI.
  • TCI Transmission Configuration Indication
  • the mapping between code points of the TCI fields in the TCIs states and the DCI is slot # (n + 3 * N subframe, ⁇ slot + It can be applied from 1).
  • N subframe, ⁇ slot is determined based on Table 1 or Table 2 described above.
  • the terminal After the terminal receives the initial higher layer configuration of the TCI states (initial higher layer configuration) and before the terminal receives the activation command, the terminal has the DMRS port (s) of the PDSCH of the serving cell is' QCL-TypeA From the viewpoint, it is assumed that it is QCL with the SS / PBCH (Synchronization Signal / Physical Broadcast Channel) block determined in the initial access procedure. Additionally, at the time, the UE may assume that the DMRS port (s) of the PDSCH of the serving cell is QCL with the SS / PBCH block determined in the initial access procedure from the perspective of 'QCL-TypeD'.
  • SS / PBCH Synchrom Radio Service
  • the UE assumes that the TCI field exists in the PDCCH of DCI format 1_1 transmitted on the CORESET.
  • the upper layer parameter tci-PresentInDCI is not set for the CORESET for scheduling the PDSCH, or the PDSCH is scheduled by DCI format 1_0, and the time offset between the reception time of the DL DCI and the reception time of the corresponding PDSCH is a threshold Threshold-Sched -Offset (the threshold is determined based on the reported UE capability ) or greater than or equal to, in order to determine the PDSCH antenna port QCL, the UE has a TCI state for the PDSCH or a QCL assumption CORESET used for PDCCH transmission It is assumed that it is the same as the TCI state or QCL assumption applied to.
  • the PDSCH When the upper layer parameter tci-PresentInDCI is set to 'enabled' and the TCI field in DCI scheduling CC (component carrier) indicates the activated TCI states in the scheduled CC or DL BW (point to), the PDSCH When is scheduled by DCI format 1_1, the UE uses TCI-State based on the TCI field included in DCI in the detected PDCCH to determine the PDSCH antenna port QCL. If the time offset between the reception time of the DL DCI and the reception time of the corresponding PDSCH is greater than or equal to a threshold Threshold-Sched-Offset (the threshold is determined based on the reported UE capability), the UE performs the PDSCH of the serving cell.
  • Threshold-Sched-Offset the threshold is determined based on the reported UE capability
  • the DMRS port (s) are QCL with RS (s) in the TCI state for the QCL type parameter (s) given by the indicated TCI stated.
  • the indicated TCI state should be based on the activated TCI states in the slot of the scheduled PDSCH.
  • the terminal assumes that an upper layer parameter tci-PresentInDC I is set to 'enabled' for the CORESET.
  • the terminal is a time between the reception time of the detected PDCCH in the search area set and the reception time of the corresponding PDSCH.
  • the offset is expected to be greater than or equal to the Threshold-Sched-Offset threshold.
  • Higher layer parameters tci-PresentInDC I is for both cases set to 'enabled', or that in the RRC connected mode is not is the upper layer parameter tci-PresentInDC I set, if between reception of the PDSCH corresponding to the reception of the DL DCI time point offset If this threshold is less than Threshold-Sched-Offset , the terminal assumes the following. (i) The DMRS port (s) of the PDSCH of the serving cell has a QCL relationship to RS (s) and QCL parameter (s) in the TCI state.
  • the QCL parameter (s) is for PDCCH QCL indication of CORESET associated with the search area monitored with the lowest CORESET-ID in the last slot in one or more CORESETs in the activation BWP of the serving cell monitored by the terminal.
  • the UE may assume that the DM-RS ports of PDSCH of a serving cell are quasi co-located with the RS (s) in the TCI state with respect to the QCL parameter (s) used for PDCCH quasi co-location indication of the CORESET associated with a monitored search space with the lowest CORESET-ID in the latest slot in which one or more CORESETs within the active BWP of the serving cell are monitored by the UE.)
  • the UE when the 'QCL-TypeD' of the PDSCH DMRS is different from the 'QCL-TypeD' of the PDCCH DMRS overlapping on at least one symbol, the UE expects to prioritize the reception of the PDCCH associated with the corresponding CORESET.
  • This operation can also be applied in the case of an intra band CA (if PDSCH and CORESET are in different CCs). If there is no TCI state including 'QCL-TypeD' among the set TCI states, the UE, regardless of the time offset between the reception time of the DL DCI and the reception time of the corresponding PDSCH, indicates the TCI indicated for the scheduled PDSCH. Obtain different QCL assumptions from state.
  • the UE For periodic CSI-RS resources in the upper layer parameter NZP-CSI-RS-ResourceSet where the upper layer parameter trs-Info is set, the UE should assume that the TCI state indicates one of the following QCL type (s):
  • the terminal For the CSI-RS resource in the upper layer parameter NZP-CSI-RS-ResourceSet set without upper layer parameter trs-Info and upper layer parameter repetition , the terminal should assume that the TCI state indicates one of the following QCL type (s). :
  • the UE For the CSI-RS resource in the upper layer parameter NZP-CSI-RS-ResourceSet where the upper layer parameter repetition is set, the UE should assume that the TCI state indicates one of the following QCL type (s):
  • the terminal For DMRS of the PDCCH, the terminal should assume that the TCI state indicates one of the following QCL type (s):
  • the UE For DMRS of PDSCH, the UE should assume that the TCI state indicates one of the following QCL type (s):
  • CSI-RS channel state information reference signal
  • each transmit antenna may have a separate reference signal.
  • a reference signal for feedback of channel state information (CSI) may be defined as CSI-RS.
  • CSI-RS includes ZP (Zero Power) CSI-RS and NZP (Non-Zero-Power) CSI-RS.
  • ZP CSI-RS and NZP CSI-RS may be defined as follows.
  • NZP CSI-RS can be set by the CSI-RS-Resource-Mobility field in the NZP-CSI-RS-Resource IE (Information Element) or CSI-RS-ResourceConfigMobility IE.
  • the NZP CSI-RS may be defined based on a sequence generation and resource mapping method defined in the 3GPP TS 38.211 standard spec.
  • -ZP CSI-RS can be set by ZP-CSI-RS-Resource IE.
  • the UE may assume that the resource set for the ZP CSI-RS is not used for PDSCH transmission.
  • the UE can perform the same measurement / reception on the channel / signal regardless of whether the channel / signal except the PDSCH collides with the ZP CSI-RS (The UE performs the same measurement / reception on channels / signals except PDSCH regardless of whether they collide with ZP CSI-RS or not).
  • the base station may set CSI-IM support to the UE.
  • the measurement result on the corresponding CSI-IM resource can be regarded as interference in CSI calculation.
  • the UE may set one or more CSI-IM resource set setting (s) indicated by the upper layer parameter CSI-IM-ResourceSet .
  • each CSI-IM resource set may be composed of K (K ⁇ 1) CSI-IM resource (s).
  • CSI-IM-ResourceSet For each CSI-IM resource configuration, the following parameters may be set through the upper layer parameter CSI-IM-ResourceSet :
  • This parameter determines the CSI-IM resource configuration ID
  • This parameter determines the subcarrier occupancy of the CSI-IM resource in the slot where csi-IM-ResourceElementPattern is set to 'pattern0' or 'pattern1', respectively.
  • This parameter determines the position of the OFDM symbol of the CSI-IM resource in the slot in which csi-IM-ResourceElementPattern is set to 'pattern0' or 'pattern1', respectively.
  • This parameter determines the CSI-IM period and slot offset for periodic / semi-persistent CSI-IM.
  • This parameter includes parameters that enable the frequency occupancy setting of CSI-IM.
  • the following DL L1 / L2 beam management procedure may be supported within one or more TRP (Transmission and Reception Point):
  • P1 is used to activate terminal measurements on different TRP Tx beams, to support selection of TRP Tx beams and / or terminal Rx beam (s)
  • P1 may include intra / inter TRP Tx beam sweeping from a set of different beams.
  • P1 may include the terminal's Rx beam sweeping from different sets of beams.
  • P2 is used to activate measurement of UEs on different TRP Tx beams, so that inter / intra TRP Tx beams can be changed
  • P2 can be interpreted as a special case of P1. Accordingly, a set of beams for beam refinement can be set smaller than P1.
  • P3 is used to activate the measurement of the terminal on the same TRP Tx beam, so that the terminal can change the terminal Rx beam when using beamforming
  • the same procedure design can be applied for intra-TRP beam management and inter-TRP beam management. Accordingly, the terminal may be designed such that it does not know whether the corresponding beam is an intra-TRP beam or an inter-TRP beam.
  • the P2 and P3 procedures can be performed jointly and / or multiple times. Through this, the TRP Tx beam and the terminal Rx beam can be simultaneously changed.
  • the P3 procedure can be performed without modification to the physical layer procedure defined in the existing standard spec.
  • the P3 procedure may be performed through some modifications to the physical layer procedure defined in the existing standard spec.
  • the above-described method may support management of a plurality of Tx / Rx beam pairs for the terminal.
  • assistance information may be provided from other carriers.
  • the methods described above can be used on single / multiple beam (s) per TRP.
  • CSI-RS may support DL Tx beam sweeping and UE Rx beam sweeping.
  • CSI-RS may be used for the above-described P1, P2, P3.
  • CSI-RS can support the following mapping structures:
  • the Np value can be set in various ways. For example, it may be set to a fixed value according to a standard spec, or may be set to one of a plurality of values through configuration of a base station (eg, RRC signaling, DCI, etc.).
  • a base station eg, RRC signaling, DCI, etc.
  • time unit may mean an N OFDM symbol interval on a set (or reference) pneumatic.
  • N may be set to a value greater than or equal to 1, and the N value may be set to a fixed value according to a standard spec, or may be set to one of a plurality of values through configuration of a base station (eg, RRC signaling, DCI, etc.).
  • a base station eg, RRC signaling, DCI, etc.
  • OFDM symbols constituting one time unit may be set continuously or discontinuously.
  • Each time unit may be divided into a plurality of sub-time units.
  • TDM Time Division Multiplexing
  • IFDM Interleaved Frequency Division Multiplexing
  • the OFDM symbol level can be divided into OFDM symbol lengths equal to or shorter than the reference OFDM symbol length (eg, greater subcarrier spacing).
  • mapping structure can be used to support multiple panels or multiple Tx panels.
  • mapping method of CSI-RS for Tx beam and Rx beam sweeping Various options can be considered as a mapping method of CSI-RS for Tx beam and Rx beam sweeping:
  • the Tx beam (s) are set equally over the sub-time units
  • the Tx beam (s) are set differently over the sub-time units
  • the combination of different time units can be determined based on the number and period.
  • the Tx beam (s) may be set equally or differently across sub-time units within each time unit.
  • one OFDM symbol period may be divided into a plurality of sub-time units for P3 operation. Accordingly, UE Rx beam sweeping for the same TRP Tx beam may be allowed.
  • PDMA operation based on IFDMA or (relatively) large subcarrier spacing can also be considered.
  • P3 operation based on IFDMA the following may be considered.
  • UE can clearly distinguish NZP CSI-RS REs and ZP (Null) REs within the same OFDM symbol
  • NZP and one resource set to a specific comb value / offset and
  • ZP and other resources set to an independent comb value / offset to properly indicate null REs.
  • Multiple CSI-RS resources can be configured.
  • Null RE setup and independent comb value / offset setup whether CSI-RS resource multiplexing is appropriately supported for multiple terminals on the frequency domain may be additionally reviewed.
  • an appropriate null RE setting may be considered.
  • P3 operation may be supported by (i) setting a single CSI-RS resource composed of a plurality of OFDM symbols, or (ii) repeating the same CSI-RS resource over a plurality of OFDM symbols.
  • a simpler terminal implementation can be supported by maintaining the beam sweeping interval at an integer multiple of the symbol length.
  • the following upper layer parameter NZP-CSI-RS-ResourceSet may be set to the UE for the repetitive operation for the P3 operation.
  • the upper layer parameter may be defined as follows based on 3GPP TS 38.331.
  • the repetition parameter in NZP-CSI-RS-ResourceSet IE may be defined as follows.
  • the following parameters may be set to the terminal.
  • the upper layer parameter may be defined as follows based on 3GPP TS 38.331.
  • resourceForChannelMeasurement csi-IM-ResourceForInterference and nzp-CSI-RS-ResourceForInterference in the CSI-ReportConfig IE may have the following relationship.
  • CSI calculation may be performed as follows.
  • reporting for reportQuantity ⁇ cri-RSRP or ssb-Index-RSRP ⁇ can be classified as follows.
  • the UE may be configured as follows. At this time, the terminal may perform the following reporting according to nrofReportedRS or groupBasedBeamReporting .
  • the present disclosure focuses on a method of measuring signal to interference and noise ratio (L1-SINR) using ZP CSI-RS (or CSI-IM) based on sub-time intervals of 1 OFDM symbol or less.
  • L1-SINR signal to interference and noise ratio
  • ZP CSI-RS or CSI-IM
  • RSRQ Reference Signal Received Quality
  • 'NZP CSI-RS resource' may be replaced with 'NZP CSI-RS'.
  • a resource set / allocated for a channel measurement purpose to a terminal is referred to as a channel measurement resource (CMR), and a resource set / allocated for a interference measurement purpose to a terminal is referred to as an interference measurement resource (IMR).
  • IMR may be replaced with the term 'CSI-IM'.
  • the IMR may include a ZP (Zero Power) IMR in which a specific RS (reference signal) is not transmitted and a NZP (Non-Zero Power) IMR in which a specific RS is transmitted.
  • the term 'ZP IMR' may be extended / replaced to 'ZP CSI-RS'.
  • the role of the ZP CSI-RS may be an RS that is set / designated for PDSCH rate matching purposes as well as interference measurement purposes (or not interference measurement purposes).
  • measuring interference based on 'ZP CSI-RS' may have the same meaning as measuring interference using 'ZP IMR'.
  • IMR a resource for measuring interference by the terminal
  • RSRP reporting may be allowed to the UE for beam management.
  • RSRP is simply an index indicating the received signal power, and may be an index in which the intensity of interference is not considered. Accordingly, when only the base station Tx beam and / or the UE Rx beam are selected in consideration of only RSRP, the base station Tx beam and / or UE Rx beam having strong interference may be selected even if the RSRP is large.
  • the present disclosure proposes a method of considering SINR reporting in consideration of interference for beam management. More specifically, in the present disclosure, based on the previously defined CSI-ReportConfig and IMR (eg, ZP CSI-RS, CSI-IM, etc.), a detailed description of a method for measuring interference signal power required by a UE for SINR calculation do.
  • CSI-ReportConfig and IMR eg, ZP CSI-RS, CSI-IM, etc.
  • the base station repeats a reference signal N times on the time axis within one OFDM symbol period (eg, a reference signal where the same signal waveform repeats N times within one OFDM symbol period) Etc.).
  • the same signal (or the same signal waveform) from the receiving node is transmitted to be repeated N times within the certain time period. May include. Accordingly, the receiving node may perform up to N times Rx beam sweeping based on (or assuming) that the same signal (or the same signal waveform) is repeated N times within the predetermined time period.
  • FIGS 6 to 8 are reference diagrams for explaining an operation example of the terminal proposed in the present disclosure.
  • an operation example of the terminal and the base station proposed in the present disclosure will be described in detail with reference to the drawings.
  • a single port CMR for example, NZP CSI-RS resource
  • (N-1, 1) IMR having a RE pattern for example, ZP CSI-RS, CSI-IM, etc.
  • the (A, B) RE pattern may mean a RE pattern determined based on A consecutive subcarriers in the frequency domain and B consecutive symbols in the time domain.
  • CMR eg, NZP CSI-RS
  • CMR associated with a single antenna port e.g. NZP CSI-RS resource
  • 3,1) IMR with RE pattern e.g. ZP CSI-RS, CSI-IM Etc.
  • # 0 may be FDM (Frequency Domain Multiplexing) in an interleaved manner on the same OFDM symbol.
  • the CMR e.g, NZP CSI-RS resource
  • the terminal may assume that the received reference signal (eg, CSI-RS) is configured to be repeated N times on the time domain on one OFDM symbol.
  • the terminal may assume that the received reference signal (or the received reference signal waveform) is configured to be repeated N times on the same OFDM symbol.
  • the 'next conditions' considered for the operation in the time domain may include the following conditions.
  • IMR eg ZP CSI-RS, CSI-IM, etc.
  • RE pattern is (1, 1) or (3, 1) or (7, 1)
  • IMR for CMR e.g. NZP CSI-RS resource
  • interference measurement e.g. csi-IM-ResourceForInterference or ZP-CSI-RS-ResourceSet
  • ZP-CSI-RS-ResourceSet e.g. resourceForChannelMeasurement
  • resource-wise (resource-wise) specific CMR in the NZP CSI-RS resource set e.g.
  • NZP CSI-RS resource NZP CSI-RS resource
  • IMR corresponding to the specific CMR in the set eg, ZP CSI-RS, CSI-IM, etc.
  • the IMR corresponding to the specific CMR in the set eg, ZP CSI-RS, CSI-IM, etc.
  • the UE can perform UE Rx beam sweeping up to N times within one OFDM symbol period using the reference signal, and thereby find the optimal UE Rx beam (eg, P3 operation).
  • resourceForChannelMeasurement ⁇ NZP CSI-RS resource # 0, NZP CSI-RS resource # 1 ⁇
  • csi-IM-ReousrceForInterference ⁇ ZP CSI-RS resource # 0, ZP CSI-RS resource # 1 ⁇
  • the number of antenna ports for CMR eg, NZP CSI-RS resource
  • the RE pattern for IMR eg, ZP CSI-RS, CSI-IM, etc.
  • resources corresponding to resource-wise are identical. It is configured to be FDM in an interleaved manner on a frequency axis on an OFDM symbol. That is, according to FIG. 6, all of the above-described Condition # 1, # 2, # 3 may be satisfied.
  • the terminal has the same signal (or the same signal waveform) in the time axis on which one received reference signal (eg, CSI-RS) is on one OFDM symbol. It can be assumed that it is transmitted to be repeated 4 times. Accordingly, the UE can find an optimal Rx beam using up to 4 Rx beams for each resource, and through this, a more accurate optimal base station Tx beam (eg, NZP CSI-RS resource) and UE Rx beam You can choose.
  • Tx beam eg, NZP CSI-RS resource
  • the terminal assumes one Rx beam and measures RSRP for each resource, so that the optimal base station Tx beam is selected incorrectly than the method proposed in the present disclosure. Is done. That is, according to the present disclosure, it is possible to propose a method for selecting an optimal base station Tx beam and a UE Rx beam, which are more accurate than the methods defined in the existing standard.
  • the terminal may select the optimal base station Tx beam using one Rx beam. have.
  • the UE loses an Rx beam sweeping opportunity (ie, loses an opportunity for optimal UE Rx beam selection), but can be advantageous in terms of received power by accumulating and accumulating the 4 repetitive signals as one Rx beam. have. Consequently, this operation can be useful when the path-loss is large.
  • the UE may select the optimal base station Tx beam using two Rx beams.
  • the terminal can accumulate two repetitively transmitted signals with one Rx beam, and perform two Rx beam sweeps.
  • an IMR eg, ZP CSI-RS resource, CSI-IM, etc.
  • RE pattern is set to a (1, 1) RE pattern
  • two CMRs are interleaved on one OFDM symbol.
  • the UE may assume that the two CMRs are different base station Tx beams (eg, the UE assumes that Tx filters (or Tx coefficients) used for two CMRs are different or are not identical. Can be).
  • the UE can measure a total of 8 beam pairs (eg, 2 base station Tx beams and 4 UE Rx beams) on one OFDM symbol.
  • the RS overhead required for optimal base station Tx beam and UE Rx selection (eg, P1 operation) may be reduced by half compared to the case of FIG. 6. Additionally, latency for the corresponding operation may also be reduced.
  • the terminal may determine the number N of repetitions based on the set IMR RE pattern.
  • N may be determined / set to 2, 4, and 8, respectively.
  • the IMR RE pattern is set to (1, 1), (3, 1), CMR and IMR may be transmitted in resource block (RB) units.
  • the IMR RE pattern is set to (7, 1), CMR and IMR may be transmitted in two resource block (RB) units.
  • the IMR RE pattern is (1, 1) or (3, 1) or (7, 1) is considered.
  • the reference signal eg, CSI-RS
  • the reference signal eg, CSI-RS
  • the frequency RE interval set by CMR is 2 n RE (n is an integer).
  • the IMR RE pattern can be set to (1, 1) or (3, 1) or (7, 1) for this purpose.
  • the reference signal may be transmitted to be repeated 3 or 5 times on the time axis on one OFDM symbol, respectively.
  • the signals are not completely identical for each repetitive transmission (assuming the existing IFFT and / or FFT size), the performance is reduced during P3 operation.
  • the IMR RE pattern is (2, 1) or ( 4, 1) Even if a RE pattern is used, each repetitively transmitted signal (or signal waveform) can be completely set.
  • condition # 1 considered in the second operation example according to the present disclosure is not limited to cases in which the RE pattern is (1, 1), (3, 1), (7, 1), and in some cases Additional RE patterns may be considered (e.g., when the factor values for IFFT and / or FFT sizes are set to 3 or 5, etc.).
  • whether the UE can find the optimal UE Rx beam from the CMR using N Rx beams may be defined by UE capability. have. If the terminal reports to the base station that the operation is not supported, the terminal may not expect that a sub time unit may be set smaller than 1 OFDM symbol length for P3 operation. In other words, when the terminal reports to the base station that the operation is not supported, the terminal can expect that the sub-time unit is set to 1 OFDM symbol length for P3 operation.
  • the UE can find the optimal Rx beam by using up to N Rx beams for each resource.
  • the terminal may not always perform the operation.
  • the base station may indicate to the UE through a separate parameter that a reference signal (eg, NZP CSI-RS resource) is transmitted to be repeated N times on one OFDM symbol in the time axis. have.
  • the parameter may be set to the terminal through upper layer parameters (eg, media access control-control element (MAC-CE), radio resource control (RRC), etc.). Accordingly, when the terminal receives the parameter from the base station, it can be assumed that the terminal is transmitted such that the received reference signal (eg, NZP CSI-RS resource) is repeated N times on one OFDM symbol in the time axis. .
  • MAC-CE media access control-control element
  • RRC radio resource control
  • resources included in two resource sets (eg, CMR set and IMR set) set for the terminal are frequency on the same OFDM symbol for each resource-wise. Whether or not FDM (Frequency Domain Multiplexing) is performed in an interleaved manner on a domain should be confirmed.
  • the checking operation may increase the operation complexity of the terminal.
  • the separate parameter may be set in various ways. For example, it may be defined as a new IE not defined in the conventional 3GPP NR spec, or may be defined as a new upper layer parameter in the CSI-ReportConfig IE defined in the conventional 3GPP NR spec.
  • the base station may set the corresponding parameter to the UE through RRC and / or MAC-CE and / or DCI.
  • the terminal FDM is interleaved in the frequency direction on the same OFDM symbol for each resource-wise resource included in two resource sets (eg, CMR set and IMR set) set for the terminal for each resource-wise (Frequency Domain Multiplexing) can be expected.
  • the terminal may assume that the set CMR is repeatedly transmitted N times on one OFDM symbol.
  • the parameters proposed in the third additional operation example may be defined as subTimeUnitlessthan1 in CSI-ReportConfig IE as follows.
  • the name of the parameter is only an example suggested in the present disclosure, and the parameter may have a different name depending on the embodiment.
  • reportQuantity can additionally include cri-SINR.
  • the The UE may assume that the reference signal (eg, NZP CSI-RS resource) transmitted from the base station is repeatedly transmitted once on the time axis on one OFDM symbol.
  • the reference signal eg, NZP CSI-RS resource
  • the UE For the UE to calculate SINR, it is necessary to accurately measure the interference signal power.
  • an IMR eg, ZP CSI-RS, CSI-IM, etc.
  • the UE can more accurately measure the interference signal power.
  • the UE should assume that the reference signal (eg, CSI-RS) transmitted from the base station is repeatedly transmitted once (the same signal) on the time axis on one OFDM symbol. Accordingly, the terminal can measure the interference signal power from RE set by IMR by applying FFT (or Discrete Fourier Transform (DFT)) to the received signal.
  • FFT or Discrete Fourier Transform
  • the UE performs RE mapping with ZP CSI-RS mapped / set in the frequency domain. It cannot be found, and therefore an accurate SINR calculation cannot be performed.
  • the UE uses the CMR to receive power and interference of a desired signal. Signal reception power can be measured. And, the terminal can calculate the SINR using the two measured values.
  • CMR eg, NZP CSI-RS resource
  • the UE can acquire a sufficient sample in the frequency domain, and based on this, Accurate channel estimation can be performed.
  • the terminal may remove a signal of interest from the RE set in CMR with higher accuracy after the channel estimation.
  • the terminal may measure the interference signal reception power using the remaining signal removed from the RE.
  • FIG. 9 is a diagram briefly showing an operation example of a terminal and a base station according to an example of the present disclosure
  • FIG. 10 is a flowchart briefly showing an operation example of a terminal according to an example of the present disclosure
  • FIG. 11 is an example of this disclosure It is a flowchart simply showing an example of the operation of the base station according to.
  • a terminal may receive SINR reporting settings from a base station (S910, S1010).
  • the base station may transmit the SINR report setting to the terminal (S910, S1110).
  • the SINR report setting may be transmitted and received through higher layer signaling (eg, RRC signaling, etc.).
  • the SINR report setting may be transmitted and received through DCI.
  • the terminal may or may not receive the interference measurement resource setting from the base station (S920, S1020). More specifically, when the terminal receives the interference measurement resource setting from the base station, the interference measurement resource may be set to the terminal. On the other hand, if the terminal does not receive the interference measurement resource setting from the base station, the interference measurement resource may not be set to the terminal. In response to this, the base station may or may not transmit the interference measurement resource setting to the terminal (S920, S1120).
  • the terminal may perform the following operations based on the SINR report setting (S930, S1030).
  • the SINR associated with the channel measurement reference signal resource is calculated using the first interference measurement result calculated based on the interference measurement resource.
  • the UE may report the SINR calculated through the above method to the base station (S940, S1040).
  • the base station may receive the SINR report calculated from the terminal (S940, S1130).
  • a non-zero power channel state information-reference signal (NZP CSI-RS) or synchronization signal / physical broadcast channel (synchronization) received through the channel measurement reference signal resource signal / physical broadcast channel), and the interference measurement resource may include a zero power (ZP) interference measurement resource or a non-zero interference measurement resource.
  • the channel measurement reference signal resource and the interference measurement resource may be set on one orthogonal frequency division multiplexing (OFDM) symbol.
  • OFDM orthogonal frequency division multiplexing
  • the channel measurement reference signal resource and the interference measurement resource may be set according to a frequency division multiplexing (FDM) method on the one OFDM symbol.
  • FDM frequency division multiplexing
  • the terminal calculates the SINR associated with the channel measurement reference signal resource using the first interference measurement result calculated based on the interference measurement resource, the channel measurement on the one OFDM symbol Assuming that the reference signal received through the reference signal resource is repeatedly transmitted once on the time domain, the terminal may include calculating the SINR associated with the channel measurement reference signal resource using the first interference measurement result. .
  • the terminal uses the second interference measurement result calculated based on the channel measurement reference signal resource and the channel measurement reference signal resource and Calculating the associated SINR can include the following actions:
  • the second interference measurement result is calculated by removing the signal of interest detected through the channel estimation from the channel measurement reference signal resource
  • the channel measurement reference signal resource in one resource block (RB) may be set on at least three subcarriers.
  • the channel measurement reference signal resource is a plurality of resources having a predetermined resource element (RE) interval on one orthogonal frequency division multiplexing (OFDM) symbol It can be set on REs.
  • RE resource element
  • the SINR may include a first layer (L1) -SINR.
  • the communication system 1 applied to the present disclosure includes a wireless device, a base station and a network.
  • the wireless device means a device that performs communication using a wireless access technology (eg, 5G NR (New RAT), Long Term Evolution (LTE)), and may be referred to as a communication / wireless / 5G device.
  • a wireless access technology eg, 5G NR (New RAT), Long Term Evolution (LTE)
  • LTE Long Term Evolution
  • the wireless device includes a robot 100a, a vehicle 100b-1, 100b-2, an XR (eXtended Reality) device 100c, a hand-held device 100d, and a home appliance 100e. ), An Internet of Thing (IoT) device 100f, and an AI device / server 400.
  • IoT Internet of Thing
  • the vehicle may include a vehicle equipped with a wireless communication function, an autonomous driving vehicle, a vehicle capable of performing inter-vehicle communication, and the like.
  • the vehicle may include a UAV (Unmanned Aerial Vehicle) (eg, a drone).
  • XR devices include Augmented Reality (AR) / Virtual Reality (VR) / Mixed Reality (MR) devices, Head-Mounted Device (HMD), Head-Up Display (HUD) provided in vehicles, televisions, smartphones, It may be implemented in the form of a computer, wearable device, home appliance, digital signage, vehicle, robot, or the like.
  • the portable device may include a smart phone, a smart pad, a wearable device (eg, a smart watch, smart glasses), a computer (eg, a notebook, etc.).
  • Household appliances may include a TV, a refrigerator, and a washing machine.
  • IoT devices may include sensors, smart meters, and the like.
  • the base station and the network may also be implemented as wireless devices, and the specific wireless device 200a may operate as a base station / network node to other wireless devices.
  • the wireless devices 100a to 100f may be connected to the network 300 through the base station 200.
  • AI Artificial Intelligence
  • the network 300 may be configured using a 3G network, a 4G (eg, LTE) network, or a 5G (eg, NR) network.
  • the wireless devices 100a to 100f may communicate with each other through the base station 200 / network 300, but may directly communicate (e.g. sidelink communication) without going through the base station / network.
  • the vehicles 100b-1 and 100b-2 may perform direct communication (e.g. Vehicle to Vehicle (V2V) / Vehicle to everything (V2X) communication).
  • the IoT device eg, sensor
  • the IoT device may directly communicate with other IoT devices (eg, sensors) or other wireless devices 100a to 100f.
  • Wireless communication / connections 150a, 150b, and 150c may be achieved between the wireless devices 100a to 100f / base station 200 and the base station 200 / base station 200.
  • the wireless communication / connection is various wireless access such as uplink / downlink communication 150a and sidelink communication 150b (or D2D communication), base station communication 150c (eg relay, IAB (Integrated Access Backhaul)). It can be achieved through technology (eg, 5G NR), and wireless devices / base stations / wireless devices, base stations and base stations can transmit / receive radio signals to each other through wireless communication / connections 150a, 150b, 150c.
  • the wireless communication / connections 150a, 150b, 150c can transmit / receive signals over various physical channels.
  • various signal processing processes eg, channel encoding / decoding, modulation / demodulation, resource mapping / demapping, etc.
  • resource allocation processes e.g., resource allocation processes, and the like.
  • FIG 13 illustrates a wireless device that can be applied to the present disclosure.
  • the first wireless device 100 and the second wireless device 200 may transmit and receive wireless signals through various wireless access technologies (eg, LTE and NR).
  • ⁇ the first wireless device 100, the second wireless device 200 ⁇ is ⁇ wireless device 100x, base station 200 ⁇ and / or ⁇ wireless device 100x), wireless device 100x in FIG. 12 ⁇ .
  • the first wireless device 100 includes one or more processors 102 and one or more memories 104, and may further include one or more transceivers 106 and / or one or more antennas 108.
  • the processor 102 controls the memory 104 and / or transceiver 106 and may be configured to implement the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein.
  • the processor 102 may process information in the memory 104 to generate the first information / signal, and then transmit the wireless signal including the first information / signal through the transceiver 106.
  • the processor 102 may receive the wireless signal including the second information / signal through the transceiver 106 and store the information obtained from the signal processing of the second information / signal in the memory 104.
  • the memory 104 may be connected to the processor 102 and may store various information related to the operation of the processor 102.
  • the memory 104 is an instruction to perform some or all of the processes controlled by the processor 102, or to perform the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein. You can store software code that includes
  • the processor 102 and the memory 104 may be part of a communication modem / circuit / chip designed to implement wireless communication technology (eg, LTE, NR).
  • the transceiver 106 can be coupled to the processor 102 and can transmit and / or receive wireless signals through one or more antennas 108.
  • the transceiver 106 may include a transmitter and / or receiver.
  • the transceiver 106 may be mixed with a radio frequency (RF) unit.
  • the wireless device may mean a communication modem / circuit / chip.
  • the second wireless device 200 includes one or more processors 202, one or more memories 204, and may further include one or more transceivers 206 and / or one or more antennas 208.
  • the processor 202 controls the memory 204 and / or transceiver 206 and may be configured to implement the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein.
  • the processor 202 may process information in the memory 204 to generate third information / signal, and then transmit a wireless signal including the third information / signal through the transceiver 206.
  • the processor 202 may receive the wireless signal including the fourth information / signal through the transceiver 206 and store the information obtained from the signal processing of the fourth information / signal in the memory 204.
  • the memory 204 may be connected to the processor 202, and may store various information related to the operation of the processor 202.
  • the memory 204 is an instruction to perform some or all of the processes controlled by the processor 202, or to perform the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein. You can store software code that includes
  • the processor 202 and the memory 204 may be part of a communication modem / circuit / chip designed to implement wireless communication technology (eg, LTE, NR).
  • the transceiver 206 can be coupled to the processor 202 and can transmit and / or receive wireless signals through one or more antennas 208.
  • Transceiver 206 may include a transmitter and / or receiver.
  • Transceiver 206 may be mixed with an RF unit.
  • the wireless device may mean a communication modem / circuit / chip.
  • one or more protocol layers may be implemented by one or more processors 102 and 202.
  • one or more processors 102, 202 may implement one or more layers (eg, functional layers such as PHY, MAC, RLC, PDCP, RRC, SDAP).
  • the one or more processors 102 and 202 may include one or more Protocol Data Units (PDUs) and / or one or more Service Data Units (SDUs) according to the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein. Can be created.
  • PDUs Protocol Data Units
  • SDUs Service Data Units
  • the one or more processors 102, 202 may generate messages, control information, data or information according to the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein.
  • the one or more processors 102, 202 generate signals (eg, baseband signals) including PDUs, SDUs, messages, control information, data or information according to the functions, procedures, suggestions and / or methods disclosed herein. , To one or more transceivers 106, 206.
  • One or more processors 102, 202 may receive signals (eg, baseband signals) from one or more transceivers 106, 206, and descriptions, functions, procedures, suggestions, methods and / or operational flow diagrams disclosed herein Depending on the field, PDU, SDU, message, control information, data or information may be acquired.
  • signals eg, baseband signals
  • One or more processors 102, 202 may be referred to as a controller, microcontroller, microprocessor, or microcomputer.
  • the one or more processors 102, 202 may be implemented by hardware, firmware, software, or a combination thereof.
  • ASICs Application Specific Integrated Circuits
  • DSPs Digital Signal Processors
  • DSPDs Digital Signal Processing Devices
  • PLDs Programmable Logic Devices
  • FPGAs Field Programmable Gate Arrays
  • Descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed in this document may be implemented using firmware or software, and firmware or software may be implemented to include modules, procedures, functions, and the like.
  • the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein are either firmware or software set to perform or are stored in one or more processors 102, 202, or stored in one or more memories 104, 204. It can be driven by the above processors (102, 202).
  • the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein can be implemented using firmware or software in the form of code, instructions and / or instructions.
  • One or more memories 104, 204 may be coupled to one or more processors 102, 202, and may store various types of data, signals, messages, information, programs, codes, instructions, and / or instructions.
  • the one or more memories 104, 204 may be comprised of ROM, RAM, EPROM, flash memory, hard drive, register, cache memory, computer readable storage medium and / or combinations thereof.
  • the one or more memories 104, 204 may be located inside and / or outside of the one or more processors 102, 202. Also, the one or more memories 104 and 204 may be connected to the one or more processors 102 and 202 through various technologies such as a wired or wireless connection.
  • the one or more transceivers 106 and 206 may transmit user data, control information, radio signals / channels, and the like referred to in the methods and / or operational flowcharts of the present document to one or more other devices.
  • the one or more transceivers 106, 206 may receive user data, control information, radio signals / channels, and the like referred to in the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein from one or more other devices. have.
  • one or more transceivers 106, 206 may be coupled to one or more processors 102, 202, and may transmit and receive wireless signals.
  • one or more processors 102, 202 can control one or more transceivers 106, 206 to transmit user data, control information, or wireless signals to one or more other devices. Additionally, the one or more processors 102, 202 may control one or more transceivers 106, 206 to receive user data, control information, or wireless signals from one or more other devices. In addition, one or more transceivers 106, 206 may be coupled to one or more antennas 108, 208, and one or more transceivers 106, 206 may be described, functions described herein through one or more antennas 108, 208.
  • the one or more antennas may be a plurality of physical antennas or a plurality of logical antennas (eg, antenna ports).
  • the one or more transceivers 106 and 206 process the received user data, control information, radio signals / channels, etc. using one or more processors 102, 202, and receive radio signals / channels from the RF band signal. It can be converted to a baseband signal.
  • the one or more transceivers 106 and 206 may convert user data, control information, and radio signals / channels processed using one or more processors 102 and 202 from a baseband signal to an RF band signal.
  • the one or more transceivers 106, 206 may include (analog) oscillators and / or filters.
  • the wireless device 14 shows another example of a wireless device applied to the present disclosure.
  • the wireless device may be implemented in various forms according to use-example / service (see FIG. 12).
  • the wireless devices 100 and 200 correspond to the wireless devices 100 and 200 of FIG. 13, and various elements, components, units / units, and / or modules ).
  • the wireless devices 100 and 200 may include a communication unit 110, a control unit 120, a memory unit 130, and additional elements 140.
  • the communication unit may include a communication circuit 112 and a transceiver (s) 114.
  • the communication circuit 112 can include one or more processors 102 and 202 of FIG. 13 and / or one or more memories 104 and 204.
  • the transceiver (s) 114 may include one or more transceivers 106,206 and / or one or more antennas 108,208 of FIG. 13.
  • the control unit 120 is electrically connected to the communication unit 110, the memory unit 130, and the additional element 140, and controls various operations of the wireless device. For example, the controller 120 may control the electrical / mechanical operation of the wireless device based on the program / code / command / information stored in the memory unit 130. In addition, the control unit 120 transmits information stored in the memory unit 130 to the outside (eg, another communication device) through the wireless / wired interface through the communication unit 110 or externally (eg, through the communication unit 110). Information received through a wireless / wired interface from another communication device) may be stored in the memory unit 130.
  • the outside eg, another communication device
  • Information received through a wireless / wired interface from another communication device may be stored in the memory unit 130.
  • the additional element 140 may be variously configured according to the type of wireless device.
  • the additional element 140 may include at least one of a power unit / battery, an input / output unit (I / O unit), a driving unit, and a computing unit.
  • wireless devices include robots (FIGS. 12, 100A), vehicles (FIGS. 12, 100B-1, 100B-2), XR devices (FIGS. 12, 100C), portable devices (FIGS. 12, 100D), and home appliances. (Fig. 12, 100e), IoT device (Fig.
  • digital broadcasting terminal digital broadcasting terminal
  • hologram device public safety device
  • MTC device medical device
  • fintech device or financial device
  • security device climate / environment device
  • It may be implemented in the form of an AI server / device (FIGS. 12 and 400), a base station (FIGS. 12 and 200), and a network node.
  • the wireless device may be used in a mobile or fixed location depending on the usage-example / service.
  • various elements, components, units / parts, and / or modules in the wireless devices 100 and 200 may be connected to each other through a wired interface, or at least some of them may be connected wirelessly through the communication unit 110.
  • the control unit 120 and the communication unit 110 are connected by wire, and the control unit 120 and the first unit (eg, 130 and 140) are connected through the communication unit 110. It can be connected wirelessly.
  • each element, component, unit / unit, and / or module in the wireless devices 100 and 200 may further include one or more elements.
  • the controller 120 may be composed of one or more processor sets.
  • control unit 120 may include a set of communication control processor, application processor, electronic control unit (ECU), graphic processing processor, and memory control processor.
  • memory unit 130 includes random access memory (RAM), dynamic RAM (DRAM), read only memory (ROM), flash memory, volatile memory, and non-volatile memory (non- volatile memory) and / or combinations thereof.
  • the portable device may include a smart phone, a smart pad, a wearable device (eg, a smart watch, smart glasses), and a portable computer (eg, a notebook).
  • the mobile device may be referred to as a mobile station (MS), a user terminal (UT), a mobile subscriber station (MSS), a subscriber station (SS), an advanced mobile station (AMS), or a wireless terminal (WT).
  • MS mobile station
  • UT user terminal
  • MSS mobile subscriber station
  • SS subscriber station
  • AMS advanced mobile station
  • WT wireless terminal
  • the portable device 100 includes an antenna unit 108, a communication unit 110, a control unit 120, a memory unit 130, a power supply unit 140a, an interface unit 140b, and an input / output unit 140c. ).
  • the antenna unit 108 may be configured as a part of the communication unit 110.
  • Blocks 110 to 130 / 140a to 140c correspond to blocks 110 to 130/140 in FIG. 14, respectively.
  • the communication unit 110 may transmit and receive signals (eg, data, control signals, etc.) with other wireless devices and base stations.
  • the control unit 120 may perform various operations by controlling components of the portable device 100.
  • the controller 120 may include an application processor (AP).
  • the memory unit 130 may store data / parameters / programs / codes / instructions required for driving the portable device 100. Also, the memory unit 130 may store input / output data / information.
  • the power supply unit 140a supplies power to the portable device 100 and may include a wired / wireless charging circuit, a battery, and the like.
  • the interface unit 140b may support the connection between the mobile device 100 and other external devices.
  • the interface unit 140b may include various ports (eg, audio input / output ports, video input / output ports) for connection with external devices.
  • the input / output unit 140c may receive or output image information / signal, audio information / signal, data, and / or information input from a user.
  • the input / output unit 140c may include a camera, a microphone, a user input unit, a display unit 140d, a speaker, and / or a haptic module.
  • the input / output unit 140c acquires information / signal (eg, touch, text, voice, image, video) input from the user, and the obtained information / signal is transmitted to the memory unit 130 Can be saved.
  • the communication unit 110 may convert information / signals stored in the memory into wireless signals, and transmit the converted wireless signals directly to other wireless devices or to a base station.
  • the communication unit 110 may restore the received radio signal to original information / signal. After the restored information / signal is stored in the memory unit 130, it can be output in various forms (eg, text, voice, image, video, heptic) through the input / output unit 140c.
  • Vehicles or autonomous vehicles can be implemented as mobile robots, vehicles, trains, aerial vehicles (AVs), ships, and the like.
  • a vehicle or an autonomous vehicle 100 includes an antenna unit 108, a communication unit 110, a control unit 120, a driving unit 140a, a power supply unit 140b, a sensor unit 140c, and autonomous driving It may include a portion (140d).
  • the antenna unit 108 may be configured as a part of the communication unit 110.
  • Blocks 110/130 / 140a through 140d correspond to blocks 110/130/140 in FIG. 15, respectively.
  • the communication unit 110 may transmit and receive signals (eg, data, control signals, etc.) with external devices such as other vehicles, a base station (e.g. base station, road side unit, etc.) and a server.
  • the controller 120 may perform various operations by controlling elements of the vehicle or the autonomous vehicle 100.
  • the controller 120 may include an electronic control unit (ECU).
  • the driving unit 140a may cause the vehicle or the autonomous vehicle 100 to travel on the ground.
  • the driving unit 140a may include an engine, a motor, a power train, wheels, brakes, and steering devices.
  • the power supply unit 140b supplies power to the vehicle or the autonomous vehicle 100 and may include a wired / wireless charging circuit, a battery, and the like.
  • the sensor unit 140c may obtain vehicle status, surrounding environment information, user information, and the like.
  • the sensor unit 140c includes an inertial measurement unit (IMU) sensor, a collision sensor, a wheel sensor, a speed sensor, a tilt sensor, a weight sensor, a heading sensor, a position module, and a vehicle forward / Reverse sensor, battery sensor, fuel sensor, tire sensor, steering sensor, temperature sensor, humidity sensor, ultrasonic sensor, illumination sensor, pedal position sensor, and the like.
  • the autonomous driving unit 140d maintains a driving lane, automatically adjusts speed, such as adaptive cruise control, and automatically moves along a predetermined route, and automatically sets a route when a destination is set. Technology, etc. can be implemented.
  • the communication unit 110 may receive map data, traffic information data, and the like from an external server.
  • the autonomous driving unit 140d may generate an autonomous driving route and a driving plan based on the acquired data.
  • the controller 120 may control the driving unit 140a such that the vehicle or the autonomous vehicle 100 moves along the autonomous driving path according to a driving plan (eg, speed / direction adjustment).
  • a driving plan eg, speed / direction adjustment.
  • the communication unit 110 may acquire the latest traffic information data non-periodically from an external server, and acquire surrounding traffic information data from nearby vehicles.
  • the sensor unit 140c may acquire vehicle status and surrounding environment information.
  • the autonomous driving unit 140d may update the autonomous driving route and driving plan based on newly acquired data / information.
  • the communication unit 110 may transmit information regarding a vehicle location, an autonomous driving route, and a driving plan to an external server.
  • the external server may predict traffic information data in advance using AI technology or the like based on the information collected from the vehicle or autonomous vehicles, and provide the predicted traffic information data to the vehicle or autonomous vehicles.
  • Embodiments of the present disclosure can be applied to various wireless access systems.
  • Examples of various radio access systems include 3rd Generation Partnership Project (3GPP) or 3GPP2 systems.
  • Embodiments of the present disclosure can be applied to not only the various wireless access systems, but also to all technical fields to which the various wireless access systems are applied.
  • the proposed method can be applied to mmWave communication system using ultra high frequency band.
  • embodiments of the present disclosure can be applied to various applications such as free-driving vehicles, drones, and the like.

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Abstract

La présente invention porte sur un procédé de fonctionnement d'un terminal et d'une station de base dans un système de communication sans fil, et sur un dispositif destiné à prendre en charge ledit procédé. Selon un mode de réalisation applicable à la présente invention, un rapport de rapport signal sur bruit plus brouillage (SINR) peut être configuré dans un terminal, et sur la base du rapport, un rapport de SINR rapporté à une station de base (BS) par le terminal peut être calculé différemment selon qu'une ressource de mesure de brouillage est configurée ou non dans le terminal.
PCT/KR2019/011552 2018-09-06 2019-09-06 Procédé de fonctionnement d'un terminal et d'une station de base dans un système de communication sans fil, et dispositif destiné à le prendre en charge WO2020050683A1 (fr)

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US17/139,569 US11716645B2 (en) 2018-09-06 2020-12-31 Method of operating terminal and base station in wireless communication system and apparatus supporting same

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